Determine the equilibrium constant, Kgoal for the reaction 4PCl5(g)⇌P4(s)+10Cl2(g),    Kgoal=?4PCl5(g)⇌P4(s)+10Cl2(g),    Kgoal=? by making use of the following information: P4(s)+6Cl2(g)⇌4PCl3(g),       K1=2.00×1019P4(s)+6Cl2(g)⇌4PCl3(g),       K1=2.00×1019 PCl5(g)⇌PCl3(g)+Cl2(g),       K2=1.13×10−2PCl5(g)⇌PCl3(g)+Cl2(g),       K2=1.13×10−2 Express your answer numerically.

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section18.6: Calculating And Using Standard Free Energies, Δfg˚
Problem 18.8CYU
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Determine the equilibrium constant, Kgoal for the reaction

4PCl5(g)⇌P4(s)+10Cl2(g),    Kgoal=?4PCl5(g)⇌P4(s)+10Cl2(g),    Kgoal=?

by making use of the following information:

  1. P4(s)+6Cl2(g)⇌4PCl3(g),       K1=2.00×1019P4(s)+6Cl2(g)⇌4PCl3(g),       K1=2.00×1019
  2. PCl5(g)⇌PCl3(g)+Cl2(g),       K2=1.13×10−2PCl5(g)⇌PCl3(g)+Cl2(g),       K2=1.13×10−2
Express your answer numerically.
Expert Solution
Step 1

Given reactions with the equilibrium constants:

  1. P4(s)+6Cl2(g)⇌4PCl3(g),       K1=2.00×1019
  2. PCl5(g)⇌PCl3(g)+Cl2(g),       K2=1.13×10−2

We have to calculate the equilibrium constant, Kgoal for the reaction, 4PCl5(g)⇌P4(s)+10Cl2(g)

 

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